Read Microsoft PowerPoint - IBIS.pptx text version

PCBsimTMHSPICETM IBIS

20111

www.signalkhobho.com

IBIS

· / · ANSI/EIA-656 ­A · IBIS

IBISEIA

IBIS

io.ibs

PCBsimTMSignalMethTM

· · · · IBIS TouchstoneS /

IO.IBSV-TTypeRisingtimeFallingtime

Pulldown SMTM

Zsourse=19

V/I

19

Voltage(V/T)-Controlled Resistor(V/I)

V/TV/I

Voltage-Controlled Resistor

V/T

????

V/I

MSIM

*Example File to Use IBIS model in PCBsim * SignalKhoBho A.Noda 2011 Vin in 0 pulse (0 3.3 0 200p 200p 5n 10n) Ven en 0 Dc 0 Rout out 0 1meg *Call IBIS Bout pu pd out in en nd_out_of_in +file='io.ibs' +model='io' +typ=typ +power=on .tran 10p 20ns .option delmax=10p .option post .probe v(out) .end * 100MHz Pulse * V enable=low * Termination 1meg(High)

* B element input/output model

* 20ns transient simulation

MSIM-PCBIBIS parserPulldown/Pullup non-monotonic

-0.6V

Pulldown

MSIM-PCBTMV/T

V/T falling

V/T rising

V/T falling V/T rising

1Meg Zsourse19 50 50 50 W W

· IBISV/TV/I · PCBsimTMMSIM-PCB)HSPICETMBIBIS · MSIM-PCBBV/TV/I · V/TRamp · /V/I · PCBsimTMIBIS · IBISHSPICETM HSPICETM PCBsimIBIS

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Microsoft PowerPoint - IBIS.pptx

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